I’ve worn trail shoes for backpacking for the last ten years or so. Mostly inov8 - I loved the terrocs sadly no more - currently wearing parkclaw 275s - lots of cushioning - not sure if they’ve enough grip for mountains. I’ve also got a pair of Salomon x ultra mid 3 gtx which are light boots - a good halfway house - unless I change my mind, I’ll wear them for this year’s challenge. Salomon are narrow fitting which suits me, a number of the brands suggested by others are too wide for me.

I carry more socks with trail shoes as they get wet quicker, I also buy half a size bigger for walking than I would for running so I can wear double socks - it’s a process of trial and error to find out what works.

I suspect it’s also true that most trail shoe wearers carry fairly light packs - less stress on the feet so you can get away with less padding in the midsoles.